These are two different products. It's like SpaceX launching satellites for competitive satellite internet services. They didn't care that they were providing launch capabilities for a competitor and neither should Anthropic. What if Apple stopped allowing you to use an iPhone if you worked at Google?
> What if Apple stopped allowing you to use an iPhone if you worked at Google?
This wouldn't be remotely comparable. This is targeting of a competitor's employees, not targeting a competitor's subsidiaries.
If you want to go the Apple-Google route a better comparison would be that this is like Apple refusing to allow you to hook up an Air Tag on an Android phone. Which is something that they do, in fact, do.
Another way this isn't comparable is that the training data is critical for the services each provides. Seeing answers Claude gives (at scale, for free) would be a huge competitive advantage to OpenAI, whereas Apple Mail seeing the email you send via Gmail wouldn't convey any competitive advantage in email, for example.
I think the nature of your two examples, along with the one from the news, is too different from each other for the analogy to really hold. These situations can only be judged on a case-by-case basis.